Guhring 9039360060000 M6x1.00 Machine Tap 4-flute Cobalt

Product Description

The GUHRING 9039360060000 is a straight-flute machine tap designed for cutting M6x1.00 metric coarse internal threads in production and job-shop environments. Built from cobalt high-speed steel and coated with a dual TiAlN/TiN finish, this tap handles abrasive materials and cast iron where standard HSS tooling wears prematurely. The modified bottoming chamfer allows threading closer to the bottom of blind holes than a standard plug or taper tap. With a 2.5-inch overall length and a 4-flute straight-flute geometry, it is suited for rigid tapping setups on CNC machining centers and manual machines alike. Installation and use are performed by machinists and tool-and-die professionals.

This tap is rated for both blind-hole and through-hole threading applications. The 6HX class of fit with thread limits D5 and D6 targets standard metric tolerance requirements common in general-purpose manufacturing. The TiAlN/TiN coating provides heat resistance and lubricity, making this tap particularly effective in dry or minimal-lubrication tapping of cast iron and abrasive workpiece materials. The straight-flute design keeps chips from advancing into the hole, which is preferred when chip control is a priority in through-hole work.

Key Features

• Cobalt HSS construction for extended tool life in abrasive and cast iron materials
• Dual TiAlN/TiN coating improves heat resistance and reduces friction at the cutting edge
• Modified bottoming chamfer enables threading near the bottom of blind holes
• 4-flute straight-flute geometry provides chip control in both blind and through-hole applications
• 6HX class of fit with D5/D6 thread limits for standard metric coarse tolerances
• No coolant-through design — compatible with flood, mist, or dry tapping setups

Compatibility

Designed for M6x1.00 metric coarse thread applications in abrasive materials and cast iron. Suitable for use in CNC and manual tapping operations requiring a modified bottoming chamfer and 6HX fit class.

Installation Notes

This tap should be installed in a rigid tap holder or tapping head matched to the 0.255-inch shank diameter and 0.191-inch square drive size. Ensure the machine spindle is powered down and the workpiece is securely fixtured before tool changes. Use appropriate cutting fluid for the workpiece material, even when the tap is rated for dry use, to maximize tool life. Follow shop-standard tapping speeds for cobalt tooling in the applicable workpiece material.